Quoted from Sonny_Jim:

From what I gather, the FTH CPU is ARM based, whereas the Alien CPU is x86, both run some form of Linux. To get FTH running on the x86 CPU wouldn't be too hard, but again it's development time that might be better off spent doing something else.
Right now they don't sell playfield kits, no one is buying FTH, so there's no real financial incentive to get FTH running on the x86 board.

Quoted from bcd:

That's right. Full Throttle uses the Utilite, Alien uses the Zotac. Internally the code is organized differently, and software update is hopefully a little easier than before.
I've already ported the Full Throttle code onto the Zotac platform. I've been running it on my game for months now. The packages have been sent to the UK factory and final testing started. Obviously that has slowed down and I'm not sure where it stands on releasing it.
If you order an Alien kit, you'll be able to ditch the Utilite and just use the Zotac for both games. The SSD holds both sets of game code and you can switch between them with a simple menu change. If you aren't ordering Alien, but want to update your Full Throttle to the Zotac, there should be an option to do so - not sure about pricing or priority on that right now though.

Quoted from libtech:

Update - got the new zotac, no dice though, must be the hdd or data, still no contact from heighway about an image file

Quoted from mbwalker:

Good point Bob